(19)

(11)

EP 0 802 819 A1

(12)

(43) Date of publication: 29.10.1997 Bulletin 1997/44 (21) Application number: 96900755.0 (22) Date of filing: 11.01.1996

(51) International Patent Classification (IPC):  B01D 45/ 12( . ) B04C 5/ 081( . ) F23J 15/ 02( . ) B04C 5/ 08( . ) B04C 5/ 085( . ) (86) International application number: PCT/SE1996/000013 (87) International publication number: WO 1996/021500 (18.07.1996 Gazette 1996/33)

(84) Designated Contracting States: DE DK ES FR GB IT (30) Priority: 12.01.1995 SE 19950000091 (71) Applicant: ABB CARBON AB 612 82 Finspang (SE)	(72) Inventors: BRÄNNSTRÖM, Roine S-612 37 Finspong (SE) HULTMARK, Ingvar S-603 78 Norrköping (SE) (74) Representative: Dahlstrand, Björn, et al  Asea Brown Boveri AB, Patent 721 78 Västeras 721 78 Västeras (SE)